On Monday, 30 August 2021 11:30:38 BST Alexander Puchmayr wrote: > Hi there, > > I have a weird problem on my Lenovo P14s laptop. Before I applied a world > upgrade (based on August 22 state portage), the internal speaker of the > laptop worked fine, but now its all silent, although all mixer levels are > 100% and no channel is muted.
There was a recent move to pipewire which could have jumbled audio devices around for you - but I am not familiar with how pipewire works, or why it would have caused this problem. https://wiki.gentoo.org/wiki/PipeWire In my use case the capture device (on board mic) is now always enabled upon a reboot and I have to manually disable it each time, because my selection is not being stored. NOTE: I don't use pulseaudio on this system, just alsa and now it is alsa plus pipewire. I haven't yet looked how to configure it. $ ps axf | grep pipe 19015 pts/5 S+ 0:00 \_ /bin/grep -E --colour=auto --color=auto pipe 4334 ? Sl 0:05 /usr/bin/pipewire 4349 ? Sl 0:00 \_ /usr/bin/pipewire-media-session 4350 ? Sl 0:00 \_ /usr/bin/pipewire -c pipewire-pulse.conf > Observed facts: > * Connecting a HDMI tv-set produces sound over the tv-set properly > * Booting Win10: Internal speakers working fine --> no hw issue > * Connecting headphone via audio jack under linux - no sound. > * Reverting to backup makes sound work again --> config/sw problem > introduced by update > * In plasma's system settings/audio tray, the Speaker output device is not > shown -- only 3xHDMI (The analog speaker seems to have gone) > > The kernel is exactly the same as before the upgrade, didn't recompile it > (sys-kernel/gentoo-sources-5.12.0) --> no kernel issue >From the above observations it seems your default audio card has been swapped from analogue to HDMI. This seems to be the default for many laptops. [snip...] > Any further ideas? > > Thanks, Alex You can try swapping them around by adding in /etc/asound.conf appropriate entries; e.g. this is what I have in mine: defaults.pcm.card 1 defaults.pcm.device 0 defaults.ctl.card 1 Where in my case card 1, device 0, is the analogue audio device "HDA-Intel - HD-Audio Generic": $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: HDMI [HDA ATI HDMI], device 3: Generic Digital [Generic Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Generic [HD-Audio Generic], device 0: CX20757 Analog [CX20757 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 Alternatively, take a look at this method of controlling the order in which audio modules are loaded: https://wiki.gentoo.org/wiki/ALSA#Laptops_with_HDMI_audio_output
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